Home / 15,598.16-21,530.60-12,417.28

Finding the Fourth Proportional to 15,598.16, 21,530.60 and 12,417.28

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Solution

The fourth proportional to 15,598.16, 21,530.60 and 12,417.28 is: 17,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.16 : 21,530.60 = 12,417.28 : x
  2. Step 2: Convert to fraction form
    15,598.16/21,530.60 = 12,417.28/x
  3. Step 3: Cross multiply
    15,598.16x = 21,530.60 × 12,417.28
  4. Step 4: Simplify right side
    15,598.16x = 267,351,488.77
  5. Step 5: Solve for x
    x = 267,351,488.77/15,598.16
  6. Step 6: Final answer
    x = 17,139.94

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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.