Home / 10,154.10-15,215.45-7,040.19

Finding the Fourth Proportional to 10,154.10, 15,215.45 and 7,040.19

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Solution

The fourth proportional to 10,154.10, 15,215.45 and 7,040.19 is: 10,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.10 : 15,215.45 = 7,040.19 : x
  2. Step 2: Convert to fraction form
    10,154.10/15,215.45 = 7,040.19/x
  3. Step 3: Cross multiply
    10,154.10x = 15,215.45 × 7,040.19
  4. Step 4: Simplify right side
    10,154.10x = 107,119,661.77
  5. Step 5: Solve for x
    x = 107,119,661.77/10,154.10
  6. Step 6: Final answer
    x = 10,549.40

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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.