Home / 15,417.64-21,275.16-8,703.94

Finding the Fourth Proportional to 15,417.64, 21,275.16 and 8,703.94

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Solution

The fourth proportional to 15,417.64, 21,275.16 and 8,703.94 is: 12,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.64 : 21,275.16 = 8,703.94 : x
  2. Step 2: Convert to fraction form
    15,417.64/21,275.16 = 8,703.94/x
  3. Step 3: Cross multiply
    15,417.64x = 21,275.16 × 8,703.94
  4. Step 4: Simplify right side
    15,417.64x = 185,177,716.13
  5. Step 5: Solve for x
    x = 185,177,716.13/15,417.64
  6. Step 6: Final answer
    x = 12,010.77

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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.