Home / 10,315.60-15,475.14-4,072.36

Finding the Fourth Proportional to 10,315.60, 15,475.14 and 4,072.36

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Solution

The fourth proportional to 10,315.60, 15,475.14 and 4,072.36 is: 6,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.60 : 15,475.14 = 4,072.36 : x
  2. Step 2: Convert to fraction form
    10,315.60/15,475.14 = 4,072.36/x
  3. Step 3: Cross multiply
    10,315.60x = 15,475.14 × 4,072.36
  4. Step 4: Simplify right side
    10,315.60x = 63,020,341.13
  5. Step 5: Solve for x
    x = 63,020,341.13/10,315.60
  6. Step 6: Final answer
    x = 6,109.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.