Home / 10,547.42-15,813.32-6,386.45

Finding the Fourth Proportional to 10,547.42, 15,813.32 and 6,386.45

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Solution

The fourth proportional to 10,547.42, 15,813.32 and 6,386.45 is: 9,574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.42 : 15,813.32 = 6,386.45 : x
  2. Step 2: Convert to fraction form
    10,547.42/15,813.32 = 6,386.45/x
  3. Step 3: Cross multiply
    10,547.42x = 15,813.32 × 6,386.45
  4. Step 4: Simplify right side
    10,547.42x = 100,990,866.52
  5. Step 5: Solve for x
    x = 100,990,866.52/10,547.42
  6. Step 6: Final answer
    x = 9,574.94

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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.