Home / 15,348.93-21,152.57-13,448.13

Finding the Fourth Proportional to 15,348.93, 21,152.57 and 13,448.13

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Solution

The fourth proportional to 15,348.93, 21,152.57 and 13,448.13 is: 18,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.93 : 21,152.57 = 13,448.13 : x
  2. Step 2: Convert to fraction form
    15,348.93/21,152.57 = 13,448.13/x
  3. Step 3: Cross multiply
    15,348.93x = 21,152.57 × 13,448.13
  4. Step 4: Simplify right side
    15,348.93x = 284,462,511.19
  5. Step 5: Solve for x
    x = 284,462,511.19/15,348.93
  6. Step 6: Final answer
    x = 18,533.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.