Home / 15,314.04-21,113.76-10,270.20

Finding the Fourth Proportional to 15,314.04, 21,113.76 and 10,270.20

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Solution

The fourth proportional to 15,314.04, 21,113.76 and 10,270.20 is: 14,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.04 : 21,113.76 = 10,270.20 : x
  2. Step 2: Convert to fraction form
    15,314.04/21,113.76 = 10,270.20/x
  3. Step 3: Cross multiply
    15,314.04x = 21,113.76 × 10,270.20
  4. Step 4: Simplify right side
    15,314.04x = 216,842,537.95
  5. Step 5: Solve for x
    x = 216,842,537.95/15,314.04
  6. Step 6: Final answer
    x = 14,159.72

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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.