Home / 7,645.78-10,547.29-4,994.74

Finding the Fourth Proportional to 7,645.78, 10,547.29 and 4,994.74

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Solution

The fourth proportional to 7,645.78, 10,547.29 and 4,994.74 is: 6,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.78 : 10,547.29 = 4,994.74 : x
  2. Step 2: Convert to fraction form
    7,645.78/10,547.29 = 4,994.74/x
  3. Step 3: Cross multiply
    7,645.78x = 10,547.29 × 4,994.74
  4. Step 4: Simplify right side
    7,645.78x = 52,680,971.25
  5. Step 5: Solve for x
    x = 52,680,971.25/7,645.78
  6. Step 6: Final answer
    x = 6,890.20

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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.