Home / 14,721.05-20,307.91-8,748.49

Finding the Fourth Proportional to 14,721.05, 20,307.91 and 8,748.49

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Solution

The fourth proportional to 14,721.05, 20,307.91 and 8,748.49 is: 12,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.05 : 20,307.91 = 8,748.49 : x
  2. Step 2: Convert to fraction form
    14,721.05/20,307.91 = 8,748.49/x
  3. Step 3: Cross multiply
    14,721.05x = 20,307.91 × 8,748.49
  4. Step 4: Simplify right side
    14,721.05x = 177,663,547.56
  5. Step 5: Solve for x
    x = 177,663,547.56/14,721.05
  6. Step 6: Final answer
    x = 12,068.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.