Home / 15,535.30-21,440.20-9,570.46

Finding the Fourth Proportional to 15,535.30, 21,440.20 and 9,570.46

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Solution

The fourth proportional to 15,535.30, 21,440.20 and 9,570.46 is: 13,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.30 : 21,440.20 = 9,570.46 : x
  2. Step 2: Convert to fraction form
    15,535.30/21,440.20 = 9,570.46/x
  3. Step 3: Cross multiply
    15,535.30x = 21,440.20 × 9,570.46
  4. Step 4: Simplify right side
    15,535.30x = 205,192,445.36
  5. Step 5: Solve for x
    x = 205,192,445.36/15,535.30
  6. Step 6: Final answer
    x = 13,208.15

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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.