Home / 7,547.45-11,312.98-3,159.79

Finding the Fourth Proportional to 7,547.45, 11,312.98 and 3,159.79

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Solution

The fourth proportional to 7,547.45, 11,312.98 and 3,159.79 is: 4,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.45 : 11,312.98 = 3,159.79 : x
  2. Step 2: Convert to fraction form
    7,547.45/11,312.98 = 3,159.79/x
  3. Step 3: Cross multiply
    7,547.45x = 11,312.98 × 3,159.79
  4. Step 4: Simplify right side
    7,547.45x = 35,746,604.89
  5. Step 5: Solve for x
    x = 35,746,604.89/7,547.45
  6. Step 6: Final answer
    x = 4,736.25

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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.