Home / 10,455.16-15,686.85-4,607.67

Finding the Fourth Proportional to 10,455.16, 15,686.85 and 4,607.67

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Solution

The fourth proportional to 10,455.16, 15,686.85 and 4,607.67 is: 6,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.16 : 15,686.85 = 4,607.67 : x
  2. Step 2: Convert to fraction form
    10,455.16/15,686.85 = 4,607.67/x
  3. Step 3: Cross multiply
    10,455.16x = 15,686.85 × 4,607.67
  4. Step 4: Simplify right side
    10,455.16x = 72,279,828.14
  5. Step 5: Solve for x
    x = 72,279,828.14/10,455.16
  6. Step 6: Final answer
    x = 6,913.32

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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.