Home / 12,547.69-18,820.65-5,885.64

Finding the Fourth Proportional to 12,547.69, 18,820.65 and 5,885.64

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Solution

The fourth proportional to 12,547.69, 18,820.65 and 5,885.64 is: 8,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.69 : 18,820.65 = 5,885.64 : x
  2. Step 2: Convert to fraction form
    12,547.69/18,820.65 = 5,885.64/x
  3. Step 3: Cross multiply
    12,547.69x = 18,820.65 × 5,885.64
  4. Step 4: Simplify right side
    12,547.69x = 110,771,647.65
  5. Step 5: Solve for x
    x = 110,771,647.65/12,547.69
  6. Step 6: Final answer
    x = 8,828.05

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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.