Home / 10,988.47-16,479.49-6,307.67

Finding the Fourth Proportional to 10,988.47, 16,479.49 and 6,307.67

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Solution

The fourth proportional to 10,988.47, 16,479.49 and 6,307.67 is: 9,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.47 : 16,479.49 = 6,307.67 : x
  2. Step 2: Convert to fraction form
    10,988.47/16,479.49 = 6,307.67/x
  3. Step 3: Cross multiply
    10,988.47x = 16,479.49 × 6,307.67
  4. Step 4: Simplify right side
    10,988.47x = 103,947,184.69
  5. Step 5: Solve for x
    x = 103,947,184.69/10,988.47
  6. Step 6: Final answer
    x = 9,459.66

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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.