Home / 10,386.35-15,561.80-5,710.28

Finding the Fourth Proportional to 10,386.35, 15,561.80 and 5,710.28

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Solution

The fourth proportional to 10,386.35, 15,561.80 and 5,710.28 is: 8,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.35 : 15,561.80 = 5,710.28 : x
  2. Step 2: Convert to fraction form
    10,386.35/15,561.80 = 5,710.28/x
  3. Step 3: Cross multiply
    10,386.35x = 15,561.80 × 5,710.28
  4. Step 4: Simplify right side
    10,386.35x = 88,862,150.36
  5. Step 5: Solve for x
    x = 88,862,150.36/10,386.35
  6. Step 6: Final answer
    x = 8,555.67

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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.