Home / 8,706.83-12,015.70-4,929.93

Finding the Fourth Proportional to 8,706.83, 12,015.70 and 4,929.93

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Solution

The fourth proportional to 8,706.83, 12,015.70 and 4,929.93 is: 6,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.83 : 12,015.70 = 4,929.93 : x
  2. Step 2: Convert to fraction form
    8,706.83/12,015.70 = 4,929.93/x
  3. Step 3: Cross multiply
    8,706.83x = 12,015.70 × 4,929.93
  4. Step 4: Simplify right side
    8,706.83x = 59,236,547.58
  5. Step 5: Solve for x
    x = 59,236,547.58/8,706.83
  6. Step 6: Final answer
    x = 6,803.46

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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.