Home / 10,392.74-15,589.12-4,547.78

Finding the Fourth Proportional to 10,392.74, 15,589.12 and 4,547.78

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Solution

The fourth proportional to 10,392.74, 15,589.12 and 4,547.78 is: 6,821.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.74 : 15,589.12 = 4,547.78 : x
  2. Step 2: Convert to fraction form
    10,392.74/15,589.12 = 4,547.78/x
  3. Step 3: Cross multiply
    10,392.74x = 15,589.12 × 4,547.78
  4. Step 4: Simplify right side
    10,392.74x = 70,895,888.15
  5. Step 5: Solve for x
    x = 70,895,888.15/10,392.74
  6. Step 6: Final answer
    x = 6,821.67

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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.