Home / 15,297.13-21,070.71-10,813.18

Finding the Fourth Proportional to 15,297.13, 21,070.71 and 10,813.18

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Solution

The fourth proportional to 15,297.13, 21,070.71 and 10,813.18 is: 14,894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297.13 : 21,070.71 = 10,813.18 : x
  2. Step 2: Convert to fraction form
    15,297.13/21,070.71 = 10,813.18/x
  3. Step 3: Cross multiply
    15,297.13x = 21,070.71 × 10,813.18
  4. Step 4: Simplify right side
    15,297.13x = 227,841,337.94
  5. Step 5: Solve for x
    x = 227,841,337.94/15,297.13
  6. Step 6: Final answer
    x = 14,894.38

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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.