Home / 10,547.12-15,812.88-6,386.22

Finding the Fourth Proportional to 10,547.12, 15,812.88 and 6,386.22

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Solution

The fourth proportional to 10,547.12, 15,812.88 and 6,386.22 is: 9,574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.12 : 15,812.88 = 6,386.22 : x
  2. Step 2: Convert to fraction form
    10,547.12/15,812.88 = 6,386.22/x
  3. Step 3: Cross multiply
    10,547.12x = 15,812.88 × 6,386.22
  4. Step 4: Simplify right side
    10,547.12x = 100,984,530.51
  5. Step 5: Solve for x
    x = 100,984,530.51/10,547.12
  6. Step 6: Final answer
    x = 9,574.61

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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.