Home / 15,657.51-21,478.69-14,810.11

Finding the Fourth Proportional to 15,657.51, 21,478.69 and 14,810.11

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Solution

The fourth proportional to 15,657.51, 21,478.69 and 14,810.11 is: 20,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.51 : 21,478.69 = 14,810.11 : x
  2. Step 2: Convert to fraction form
    15,657.51/21,478.69 = 14,810.11/x
  3. Step 3: Cross multiply
    15,657.51x = 21,478.69 × 14,810.11
  4. Step 4: Simplify right side
    15,657.51x = 318,101,761.56
  5. Step 5: Solve for x
    x = 318,101,761.56/15,657.51
  6. Step 6: Final answer
    x = 20,316.24

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.