Home / 12,055.40-18,085.96-5,031.51

Finding the Fourth Proportional to 12,055.40, 18,085.96 and 5,031.51

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Solution

The fourth proportional to 12,055.40, 18,085.96 and 5,031.51 is: 7,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.40 : 18,085.96 = 5,031.51 : x
  2. Step 2: Convert to fraction form
    12,055.40/18,085.96 = 5,031.51/x
  3. Step 3: Cross multiply
    12,055.40x = 18,085.96 × 5,031.51
  4. Step 4: Simplify right side
    12,055.40x = 90,999,688.60
  5. Step 5: Solve for x
    x = 90,999,688.60/12,055.40
  6. Step 6: Final answer
    x = 7,548.46

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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.