Home / 15,476.10-21,356.95-8,402.52

Finding the Fourth Proportional to 15,476.10, 21,356.95 and 8,402.52

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Solution

The fourth proportional to 15,476.10, 21,356.95 and 8,402.52 is: 11,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.10 : 21,356.95 = 8,402.52 : x
  2. Step 2: Convert to fraction form
    15,476.10/21,356.95 = 8,402.52/x
  3. Step 3: Cross multiply
    15,476.10x = 21,356.95 × 8,402.52
  4. Step 4: Simplify right side
    15,476.10x = 179,452,199.51
  5. Step 5: Solve for x
    x = 179,452,199.51/15,476.10
  6. Step 6: Final answer
    x = 11,595.44

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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.