Home / 15,587.24-21,510.97-8,513.71

Finding the Fourth Proportional to 15,587.24, 21,510.97 and 8,513.71

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Solution

The fourth proportional to 15,587.24, 21,510.97 and 8,513.71 is: 11,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.24 : 21,510.97 = 8,513.71 : x
  2. Step 2: Convert to fraction form
    15,587.24/21,510.97 = 8,513.71/x
  3. Step 3: Cross multiply
    15,587.24x = 21,510.97 × 8,513.71
  4. Step 4: Simplify right side
    15,587.24x = 183,138,085.34
  5. Step 5: Solve for x
    x = 183,138,085.34/15,587.24
  6. Step 6: Final answer
    x = 11,749.23

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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.