Home / 14,503.51-20,014.59-8,130.30

Finding the Fourth Proportional to 14,503.51, 20,014.59 and 8,130.30

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Solution

The fourth proportional to 14,503.51, 20,014.59 and 8,130.30 is: 11,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.51 : 20,014.59 = 8,130.30 : x
  2. Step 2: Convert to fraction form
    14,503.51/20,014.59 = 8,130.30/x
  3. Step 3: Cross multiply
    14,503.51x = 20,014.59 × 8,130.30
  4. Step 4: Simplify right side
    14,503.51x = 162,724,621.08
  5. Step 5: Solve for x
    x = 162,724,621.08/14,503.51
  6. Step 6: Final answer
    x = 11,219.67

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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.