Home / 8,587.41-12,880.70-5,031.51

Finding the Fourth Proportional to 8,587.41, 12,880.70 and 5,031.51

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Solution

The fourth proportional to 8,587.41, 12,880.70 and 5,031.51 is: 7,547.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.41 : 12,880.70 = 5,031.51 : x
  2. Step 2: Convert to fraction form
    8,587.41/12,880.70 = 5,031.51/x
  3. Step 3: Cross multiply
    8,587.41x = 12,880.70 × 5,031.51
  4. Step 4: Simplify right side
    8,587.41x = 64,809,370.86
  5. Step 5: Solve for x
    x = 64,809,370.86/8,587.41
  6. Step 6: Final answer
    x = 7,547.02

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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.