Home / 12,686.37-19,031.60-4,364.35

Finding the Fourth Proportional to 12,686.37, 19,031.60 and 4,364.35

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Solution

The fourth proportional to 12,686.37, 19,031.60 and 4,364.35 is: 6,547.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.37 : 19,031.60 = 4,364.35 : x
  2. Step 2: Convert to fraction form
    12,686.37/19,031.60 = 4,364.35/x
  3. Step 3: Cross multiply
    12,686.37x = 19,031.60 × 4,364.35
  4. Step 4: Simplify right side
    12,686.37x = 83,060,563.46
  5. Step 5: Solve for x
    x = 83,060,563.46/12,686.37
  6. Step 6: Final answer
    x = 6,547.23

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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.