Home / 15,766.16-21,756.56-9,047.12

Finding the Fourth Proportional to 15,766.16, 21,756.56 and 9,047.12

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Solution

The fourth proportional to 15,766.16, 21,756.56 and 9,047.12 is: 12,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.16 : 21,756.56 = 9,047.12 : x
  2. Step 2: Convert to fraction form
    15,766.16/21,756.56 = 9,047.12/x
  3. Step 3: Cross multiply
    15,766.16x = 21,756.56 × 9,047.12
  4. Step 4: Simplify right side
    15,766.16x = 196,834,209.11
  5. Step 5: Solve for x
    x = 196,834,209.11/15,766.16
  6. Step 6: Final answer
    x = 12,484.60

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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.