Home / 15,806.40-21,813.47-9,092.03

Finding the Fourth Proportional to 15,806.40, 21,813.47 and 9,092.03

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Solution

The fourth proportional to 15,806.40, 21,813.47 and 9,092.03 is: 12,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.40 : 21,813.47 = 9,092.03 : x
  2. Step 2: Convert to fraction form
    15,806.40/21,813.47 = 9,092.03/x
  3. Step 3: Cross multiply
    15,806.40x = 21,813.47 × 9,092.03
  4. Step 4: Simplify right side
    15,806.40x = 198,328,569.12
  5. Step 5: Solve for x
    x = 198,328,569.12/15,806.40
  6. Step 6: Final answer
    x = 12,547.36

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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.