Home / 15,607.34-21,549.40-9,647.18

Finding the Fourth Proportional to 15,607.34, 21,549.40 and 9,647.18

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Solution

The fourth proportional to 15,607.34, 21,549.40 and 9,647.18 is: 13,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.34 : 21,549.40 = 9,647.18 : x
  2. Step 2: Convert to fraction form
    15,607.34/21,549.40 = 9,647.18/x
  3. Step 3: Cross multiply
    15,607.34x = 21,549.40 × 9,647.18
  4. Step 4: Simplify right side
    15,607.34x = 207,890,940.69
  5. Step 5: Solve for x
    x = 207,890,940.69/15,607.34
  6. Step 6: Final answer
    x = 13,320.08

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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.