Home / 15,368.02-21,208.14-9,080.38

Finding the Fourth Proportional to 15,368.02, 21,208.14 and 9,080.38

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Solution

The fourth proportional to 15,368.02, 21,208.14 and 9,080.38 is: 12,531.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.02 : 21,208.14 = 9,080.38 : x
  2. Step 2: Convert to fraction form
    15,368.02/21,208.14 = 9,080.38/x
  3. Step 3: Cross multiply
    15,368.02x = 21,208.14 × 9,080.38
  4. Step 4: Simplify right side
    15,368.02x = 192,577,970.29
  5. Step 5: Solve for x
    x = 192,577,970.29/15,368.02
  6. Step 6: Final answer
    x = 12,531.09

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Double scale
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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.