Home / 10,356.19-15,532.66-3,430.69

Finding the Fourth Proportional to 10,356.19, 15,532.66 and 3,430.69

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Solution

The fourth proportional to 10,356.19, 15,532.66 and 3,430.69 is: 5,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.19 : 15,532.66 = 3,430.69 : x
  2. Step 2: Convert to fraction form
    10,356.19/15,532.66 = 3,430.69/x
  3. Step 3: Cross multiply
    10,356.19x = 15,532.66 × 3,430.69
  4. Step 4: Simplify right side
    10,356.19x = 53,287,741.34
  5. Step 5: Solve for x
    x = 53,287,741.34/10,356.19
  6. Step 6: Final answer
    x = 5,145.50

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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.